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Finding the Fourth Proportional to 219,213.80, 302,514.94 and 118,611.80

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Solution

The fourth proportional to 219,213.80, 302,514.94 and 118,611.80 is: 163,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,213.80 : 302,514.94 = 118,611.80 : x
  2. Step 2: Convert to fraction form
    219,213.80/302,514.94 = 118,611.80/x
  3. Step 3: Cross multiply
    219,213.80x = 302,514.94 × 118,611.80
  4. Step 4: Simplify right side
    219,213.80x = 35,881,841,560.29
  5. Step 5: Solve for x
    x = 35,881,841,560.29/219,213.80
  6. Step 6: Final answer
    x = 163,684.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.